How can I get the siteId of the current site with Microsoft Graph API?

Question

From the documentation, I can't find any ways to get the siteId of the site where I put the webpart in.

For example,

My current site is: https://{hostname}/sites/main1 <-- NOT root site, but I want to get this siteId

and I test my webpart here: https://{hostname}/sites/main1/_layouts/15/workbench.aspx

How can I achieve this? From the documentation,

A site is addressed be a unique identifier which is a composite ID of the following values:

Site collection hostname (contoso.sharepoint.com)

Site collection unique ID (guid)

Site unique ID (guid)

I can get the hostname easily by using location.hostname (Yes, I am using JavaScript + React to build my webpart) but how to get the site-id easily with Graph API?

score 48 · Accepted Answer · edited Nov 15 '22 at 23:30

48

Try this: https://graph.microsoft.com/v1.0/sites/{hostname}:/sites/{path}?$select=id For example: https://graph.microsoft.com/v1.0/sites/cie493742.sharepoint.com:/sites/Contoso/Operations/Manufacturing?$select=id (this one you can try on the Graph Explorer.

What you get back in the id is in this format:

{hostname},{spsite.id},{spweb.id}

For more info here is the link to the docs: https://learn.microsoft.com/en-us/graph/api/resources/sharepoint?view=graph-rest-1.0

edited Nov 15 '22 at 23:30

Stephen Romero

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answered Jul 31 '17 at 19:45

Yina - MSFT

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Culmination of 3 hours of searching. [This](https://support.cloudhq.net/how-to-find-guids-of-sharepoint-sites/) was partially useful but only provides the site-id – mlhDev Jul 17 '20 at 18:50
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There is always something kind of OFF with Microsoft documentation. They are usually vague or detailed to the point where they cannot be understood. – WouldBeNerd Sep 11 '20 at 01:02
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I hate Microsoft specifically for documentation – TiredOfProgramming Feb 10 '21 at 18:19
What if path contains spaces, say, instead of Operations in the above example we have 'Operations ternary'? So the url turns out to be "https://graph.microsoft.com/v1.0/sites/cie493742.sharepoint.com:/sites/Contoso/Operations ternary/Manufacturing?$select=id", which doesn't work!! @WouldBeNerd – Khushboo Mulani Apr 14 '21 at 14:07
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@KhushbooMulani in a url spaces are usually represented by %20 but I can't be sure that that would fix it for you. – WouldBeNerd Apr 15 '21 at 06:38

score 3 · Answer 2 · answered Aug 04 '22 at 05:21

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Execute the below query in Graph explorer

https://graph.microsoft.com/v1.0/sites/{tenantname}.sharepoint.com:/sites/{sitename}

replace the tenantname and sitename placeholders.

The key 'Id' in the JSON response holds the site Id value

answered Aug 04 '22 at 05:21

Prasanti Kintali

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score 2 · Answer 3 · answered Nov 07 '18 at 20:42

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You don't need to do a Graph API call to get the siteId of the current site. It is available in the PageContext.

In the main class of your webpart you can find it at:

this.context.pageContext.site.id

answered Nov 07 '18 at 20:42

RoelVB

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score 2 · Answer 4 · answered Feb 19 '19 at 07:37

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On classic sites using spPageContextInfo:

(location.host + "," + _spPageContextInfo.siteId + "," + _spPageContextInfo.webId).replace(/[\{\}]/g, "")

answered Feb 19 '19 at 07:37

rlv-dan

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This works on Modern Sites too. Note that you only get the right site id if you've navigated to the Site Collection in question (or one of its Site Pages) – Glenn Faison Jan 11 '22 at 09:52

score 1 · Answer 5 · answered Sep 16 '20 at 12:49

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Another way you can get the Site-id by below Graph Http Get API.

https://graph.microsoft.com/v1.0/sites

answered Sep 16 '20 at 12:49

Ajay Kumar

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Awesome! Worked for me. – perustaja Jun 23 '21 at 21:43
I don't think this always works, it's like the returned list doesn't include all of the sites, at least not in our SharePoint. – J_L Mar 21 '22 at 22:29

How can I get the siteId of the current site with Microsoft Graph API?

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